/* Cover Page Styles */
.cover-page {
    aspect-ratio: 8.5 / 11;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    overflow: hidden;
    background: linear-gradient(135deg, var(--accent) 0%, #a855f7 100%);
}

.cover-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: var(--space-10);
    width: 100%;
}

.cover-logo {
    margin-bottom: var(--space-8);
    display: flex;
    justify-content: center;
}

.logo-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-6);
    border: 2px dashed rgba(255, 255, 255, 0.4);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: rgba(255, 255, 255, 0.7);
}

.logo-placeholder:hover {
    border-color: white;
    color: white;
    background: rgba(255, 255, 255, 0.1);
}

.logo-placeholder svg {
    width: 40px;
    height: 40px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.5;
}

.logo-placeholder.small {
    padding: var(--space-4);
}

.logo-placeholder.small svg {
    width: 24px;
    height: 24px;
}

.logo-placeholder.small span {
    display: none;
}

.logo-img {
    max-width: 200px;
    max-height: 100px;
    object-fit: contain;
    display: none;
}

.logo-img.active {
    display: block;
}

.logo-img.active+.logo-placeholder,
.logo-img.active~.logo-placeholder {
    display: none;
}

.cover-title {
    font-size: 4rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    margin-bottom: var(--space-4);
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

.cover-tagline {
    font-size: 1.25rem;
    font-weight: 300;
    opacity: 0.9;
    margin-bottom: var(--space-10);
}

.cover-meta {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    font-size: 1rem;
    opacity: 0.8;
}

.cover-decoration {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.deco-circle {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.c1 {
    width: 400px;
    height: 400px;
    top: -100px;
    right: -100px;
}

.c2 {
    width: 300px;
    height: 300px;
    bottom: -50px;
    left: -50px;
}

.c3 {
    width: 200px;
    height: 200px;
    top: 50%;
    left: 10%;
}

@media (max-width: 768px) {
    .cover-title {
        font-size: 2.5rem;
    }
}